A certain radionuclide is being manufactured in a cyclotron at a constant rate R = 4.15 x 1021h1.It is also decaying with disintegration constant A = 0.0952 h1. After a time that is long compared to the half-life how many undecayed nuclei are there? The nuclide is said to be in secular equilibrium with its source; in this state its decay rate is just equal to its production rate. Number i Units

A certain radionuclide is being manufactured in a cyclotron at a constant rate R = 4.15 x 1021h1.It is also decaying with disintegration constant A = 0.0952 h1. After a time that is long compared to the half-life how many undecayed nuclei are there? The nuclide is said to be in secular equilibrium with its source; in this state its decay rate is just equal to its production rate. Number i Units

College Physics

1st Edition

ISBN:9781938168000

Author:Paul Peter Urone, Roger Hinrichs

Publisher:Paul Peter Urone, Roger Hinrichs

Chapter32: Medical Applications Of Nuclear Physics

Section: Chapter Questions

Problem 23PE: (a) Background radiation due to 226Ra averages only 0.01 mSv/y, but it can range upward depending on...

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(a) Background radiation due to 226Ra averages only 0.01 mSv/y, but it can range upward depending on where a 226Ra in the 80.0kg body of a man who receives a dose of 2.50mSv/y from it, noting that each 226Ra decay emits a 4.80MeV particle. You may person lives. Find the mass of neglect dose due to daughters and assume a constant amount, evenly distributed due to balanced ingestion and handily elimination. (b) Is it surprising that such a small mass could cause a measurable radiation dose? Explain.